[innerSpaceman]

From a screenwriter's point of view, it seems to me the entire purpose of Jacob and MIB's foster mother, as a character in THIS story at THIS point in the telling, is to have someone who can reasonably spew all sorts of exposition under the guise of explaining the magic of the island to the two boys who will have to take over the job of protector.

It doesn't matter if that exposition is gobbledegook. It should be explanation at this point, and that was the perfect character for the job. For example, "I've arranged it so you two can never hurt each other" is completely unsatisfying - while "by killing your birth mother and dabbing you both with her uteral blood under a full moon at the mouth of the light cave, you are now recognized as two sides of a single life form by the mojo god of the island and will forever be prevented from ever hurting each other" is the type of thing that's required after five years of getting to this point.


A foster mother character could have spent 45 minutes of that hour-long episode educating her sons and THE AUDIENCE in all the arcane mysteries of the island they would have to know, and we've BEEN DYING TO KNOW.






edited to add:


FVUK LOST